BBC Sky at Night

INSIDE THE SKY AT NIGHT

In just a generation, humanity has gone from knowing of a handful of planets – those in our Solar System – to confirming the existence of over 5,000. While many of these newly discovered exoplanets remain invisible, detected not from their own light but through their effects on their host star, that hasn't stopped scientists and artists alike from

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More from BBC Sky at Night

BBC Sky at Night3 min read
Moonwatch
Type: Walled plain Size: 235km Longitude/latitude: 5.6° W, 32.5° S Age: Older than 3.9 billion years Best time to see: First quarter (11–12 September) or six days after full Moon (24–26 September) Minimum equipment: 10× binoculars Deslandres is a lar
BBC Sky at Night5 min read
Vaonis Hestia Smartphone-based Telescope
• Price $399 (Ultimate pack) • Optics Six lenses in three groups • Aperture 30mm (1.2-inch) • Focuser Manual focus ring • Field of view 1.8† • Magnification 25x • Limiting magnitude 7–8 • App control Gravity (iOS and Android) • Extras Tripod with pan
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Making Radio Waves
The possibilities that lay in the early crackles and hisses of radio were only too clear for those who could envisage the real potential the invention possessed: what began as a revolutionary new method of communication would eventually reach to the

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